The equation of a parabola is y=x2−2x+7. Write the equation in vertex form.Write any numbers as integers or simplified proper or improper fractions.______
Q. The equation of a parabola is y=x2−2x+7. Write the equation in vertex form.Write any numbers as integers or simplified proper or improper fractions.______
Identify vertex form: Identify the vertex form of a parabola.The vertex form of a parabola is given by the equation y=a(x−h)2+k, where (h,k) is the vertex of the parabola.
Complete the square:Complete the square to rewrite the given equation in vertex form.We have the equation y=x2−2x+7. To complete the square, we need to find the value that makes x2−2x a perfect square trinomial. We do this by taking half of the coefficient of x, squaring it, and adding it to and subtracting it from the equation.Half of the coefficient of x is −2/2=−1. Squaring this gives us (−1)2=1. We add and subtract 1 to the equation.
Add and subtract: Add and subtract the squared term to the equation.y=x2−2x+1+7−1Now we have the perfect square trinomial x2−2x+1 and the constants 7−1 outside.
Factor and simplify: Factor the perfect square trinomial and simplify the constants.y=(x−1)2+6We have factored x2−2x+1 into (x−1)2 and combined 7−1 into 6.
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